We are distributors of Parker SS t Body Valves that is fabricated from CF-8M Stainless Steel, the cast equivalent of 316 Stainless Steel. ET Series Design Features:Chemical plantsRefineriesSteel millsIndustrial fuel linesAgricultural equipment. Sizes:34" - 2" (Panel Mount StyleStandard on 14" - 12" sizes) Working Pressure:to 2000 PSI (34" - 1")to 1500 PSI (1-14" - 2")to 150 PSI saturated steam Temperature Range0 to +400F Technical Specifications:300# Class 316 stainless steel body per ANSI B16.3417-4 stainless steel plug and stemBody sizes 12", 1", 1", 2"-40F to 450F (-40C to 232C) temperature range. For extended ranges, consult factory.Actuator is field reversible, air to open, air to closeRolling style diaphragm provides uniform thrustThree actuator sizes: 37, 64, 135. Maximum 35 PSIon 37 and 64 sizes; maximum 25 PSI on 135 size.Stem diameter 716"Stem travel (stroke) 0.75" all sizesMulti-spring, low-profile actuators offer a 12 PSI control band. Other options available.100% nitrogen gas testedHard seat meets Class IV leakage standards; Duraseat meets Class VI standards